Furnace-grate.



M. DUNCAN. FURNACE GRATB. APPLICATION FILED PEB. 21, 1913,

mamma -2 SHEETS-SHEET l.

Patenteamar. 23, 1915.

Abba@ W.1\5.DUNGAN.

FURNACE GRATB. I

APPLXGATION FILED PEB. 21, 1913.

Patente Mar; 23, 19M.

mv @uhm mm y WM umm I Ab Ns.

' carried-in the directionv of the 'arroWQQ "tothefrearend of the grate.takes place the rear of the grate and,

gravity 'about the 'axisof the hinge pins 8 so l as to dischargethelashes rom'the top fa'ces It will be noted that the swinging movementofthe buckets is limitt of the buckets.

ed at this time by a curved runway plate 23,

i and that eachy bucket ispositioned to receive the ashes discharged.from the next succeed The 'ashesA are 'jarred from the f ing bucket`buckets when the 'latter strike curved runv'vayplate 23 .andthis plateconfines the v ashes at the discharge Apoint so 'that they will bepositively transferred from the grate a point near the l jvented fromtilting by a plaie 25.- After bar surface 'of l'onebutket to theinterior of the next preceding bucket.l then 4vserving as ash conveyers,

and intermediate runway plates .23','1 and. at.V front endof the grate.

structure, the buckets jare temporarily pre-v 'passing over theplate`25, the buckets'are free to t1lt, with the result of discharging `theircontents, all of the .ashes being dis- The buckets travel along V v the-runway plate 23, pass4 over .rollers T24 maaar@ charged lat anaccessible point at which they may be removed.'

'Iclaimz' A furnace grate 'comprising endless sprocket chains, buckets`hinged to said 1 chains andvfreely tiltable relative tothe chain links,a front support and a rear support about which said chains travel in a*continuous' circuit, pr ment of the chains andbufckets 1n an uppercourse and in a lower'course, an abutment at the rear ofthegr-ate'against which said bucketss'trikefintilting automatically at therear-end 'of the grate while passing from.v

theirupper course of vmovement to their `lower course of movement,whereby ashes vresting upon thebucke'tsarefjarred therefrom and causedtobedeposited' into` the preceding tilted buckets, and a' runwa on whichsaidbuck'ets are moved towar the links or saidchains andheldapproximately parallel .therewith while traveling through "the lowercourse towardtheforward end of the grate.

' lnv'thepresence ofi-i- A.'B. STRA'rToN, l 'A R. CRossMnN.

' I copies o this pate-nt 'may vbe .obtained 'for five cents each, by4addressing'the Commissioner offlatentgx.

washingtqnrp. ci

oviding for the movewg-M DUNCAN..

